Do you know these words?

• おなら（を）する

  to pass gas ; to break wind ; pass flatus

• うんこ（を）する

  to defecate ; to have a bowel movement

• うんこが　でる

  to defecate ; to have a bowel movement

• おねしょ（を）する

  to pee in bed ; to wet one's bed

• おぶつ

  soil